Free4-Day SQL Challenge
Learn the Basics of SQL in 4 Days
A live, beginner-friendly challenge where you write real queries on a real company database, and solve the kind of problems data analysts are paid to solve.
Register for free
Starts Saturday, 24 October
- 100% free
- Live with an instructor
- No experience needed
- 24 Oct – 1 Nov
Save your free seat.
Register in seconds. Then join the challenge WhatsApp group, where we share class links, practice files and reminders.
You're in!
Registration no.
One last step: join the challenge WhatsApp group. That's where the class links and practice files go.
Join the WhatsApp group Add all 4 days to Google CalendarDay 1 starts Saturday 24 October, 7:00pm (GMT+1).
- 1RegisterYour name and email. Nothing else.
- 2Join the WhatsApp groupThe link appears as soon as you register.
- 3Show up liveDay 1: Saturday 24 October, 7:00pm (GMT+1).
Four days, one step at a time.
Two weekends, live online, 7:00–9:00pm (GMT+1). Learn a little, then use it straight away on real problems.
Retrieving data: SELECT fundamentals
- 1.1Meet ShopSphere, your practice database
- 1.2Your first real query with
SELECT - 1.3Pull data from tables with
FROM - 1.4Rename columns with aliases:
AS - 1.5Remove duplicates with
DISTINCT - 1.6Sort results with
ORDER BY - 1.7Keep the top rows with
LIMITandOFFSET
Filtering data: WHERE
- 2.1Filter rows with
WHERE - 2.2Filter text and dates
- 2.3Combine conditions with
ANDandOR - 2.4Control the logic with
NOTand brackets - 2.5Find ranges with
BETWEEN - 2.6Match a list with
INandNOT IN - 2.7Search for patterns with
LIKE - 2.8Find missing values with
IS NULL
Exploratory data analysis (EDA)
- 3.1A simple, repeatable EDA workflow
- 3.2One column at a time: univariate analysis
- 3.3Spot relationships: bivariate and multivariate analysis
- 3.4Guided case study on ShopSphere
Challenge day: solve real business problems
- 4.1The brief: questions from ShopSphere's managers
- 4.2Solve them live, one query at a time
- 4.3Walk through the answers together
- 4.4Your next step in data
Day 1 starts Saturday, 24 October.Free, live and made for beginners.
Register for free